http://www.abc.net.au/science/moon/computer.htm
also:
http://www.ddj.com/documents/s=1494/.../0101hc001.htm
Discuss.
edit2: Actually, this might be broadened into a more general question: is 1970's technology more reliable than today's?
Voyager's back-up systems activated
edit1: this could probably be moved to GD - I just saw the new Tech board appear all naked and lonely and couldn't resist scoring the first post.